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A metallic spherical shell of internal and external diameters 4 cm and 8 cm respectively is melted and recast into the form a cone of base diameter 8 cm The height of the cone is

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RD SHARMA-SURFACE AREAS AND VOLUMES-All Questions
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  2. A cone, a hemisphere and a cylinder stand on equal bases and have t...

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  3. A metallic spherical shell of internal and external diameters 4 cm and...

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  4. The larges sphere is carved out of a cube of side 10.5 cm. Find the...

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  5. Find the weight of a hollow sphere of metal having internal and ext...

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  6. A solid sphere of radius ' r ' is melted and recast into a hollo...

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  7. Lead spheres of diameter 6 cm are dropped into a cylindrical beaker...

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  8. The height of a solid cylinder is 15 cm and the diameter of its bas...

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  9. The solid is composed of a cylinder with hemispherical ends. If the ...

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  10. The surface area of a sphere is the same as the curved surface area...

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  11. A cylinder and a cone have equal radii of their bases and equal hei...

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  12. A rectangular vessel of dimensions 20 c mxx16 c mxx11 c m . is full...

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  13. If r1 and r2 be the radii of two solid metallic spheres and if they...

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  14. A solid metal sphere of 6 cm diameter is melted and a circular shee...

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  15. A hemispherical tank full of water is emptied by a pipe at the rate o...

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  16. Find the number of coins 1.5 cm in diameter and 0.2 cm thick, to be...

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  17. An iron pillar consists of a cylindrical portion of 2.8 m. height and...

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  18. A circus tent is cylindrical to a height of 3 metres and conical ab...

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  19. Height of a solid cylinder is 10 cm and diameter 8 cm. Two equal co...

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  20. The height of a solid cylinder is 15 cm. and the diameter of its ba...

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